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98 Cards in this Set
- Front
- Back
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which of the following is NOT a characteristic of bacteria
they are prokaryotes their DNA is one long, circular molecule they have and endoplasmic reticulum they have a cell membrane. |
they have an endoplasmic reticulum
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(active transport, diffusion) is the random movement of particles from an area of high concentration to an area of low concentration.
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diffusion
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Plants produce their own food by the process of (photosynthesis, fermentation)
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photosynthesis
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Food molecules that are too large to pass easily through the cell membrane can enter the cell by (endocytosis, exocytosis)
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endocytosis
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Human body cells have 23 pairs of (chromatids, homologous chromosomes)
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homologous chromosomes
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The process of cell division in a bacterial cell is called (mitosis, binary fission)
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binary fission
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Food particles move through proteins in the cell membrane without using energy in a process called
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passive transport
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When wilted celery is soaked in water, it becomes crisp again due to
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osmosis
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Fermentation in animal cells produces
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lactic acid and ATP
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Scientists often use experiments to test their (predictions, hypotheses), which are possible explanations for observations.
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hypotheses
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(mass, volume) is defined as the amount of space something occupies.
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volume
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A life scientist would use a (electron microscope, compound light microscope) to magnify a living specimen.
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compound light microscope
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A set of related hypotheses that are supported by evidence may become accepted as a (theory, scientific method)
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theory
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(technology, life science) is the use of knowledge, tools, and materials to solve problems and accomplish tasks.
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technology
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You could find a Life Scientist studying how wasps could be used to control fire ant populations.
True or False |
True
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When researchers use the scientific method they should
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repeat or switch the order of steps as needed
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A scientist who wants to study the possible side effects of a new medicine would probably
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include a control group that would be given no medicine
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Which tool would a life scientist use to obtain a detailed image of the nerves that branch off a person's spinal cord?
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MRI
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An advantage of using the International System of Units is that it
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gives scientists a common way to share their results.
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In a scientific experiment, a hypothesis that cannot be tested is always considered to be
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not useful
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A ____ object contains the same amount of matter as a 10kg object
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10,000g
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In the cell membrane, (protein, phospholipid) molecules form two layers.
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phospholipid
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When a pplanarian worm is cut in half, each half develops into a whole worm. This is an example of (asexual, sexual) reproduction.
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asexual
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scientists often use experiments to test their (predictions, Hypothesis) which are possible explanations for observations
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hypothesis
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(mass, volume) is defined as the amount of space something occupies.
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volume
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A life scientist would use a (electron microscope, compound light microscope) to magnify a living specimen.
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compound light microscope
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A set of related hypotheses that are supported by evidence may become accepted as a (theory, scientific method)
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theory
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(technology, life science) is the use of knowledge, tools, and materials to solve problems an accomplish tasks.
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technology
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You might find a Life scientist studying how wasps could be used to control fire ant populations
True or False |
True
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When researchers use the scientific method, they should
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repeat or switch the order of steps as needed
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A scientist who wants to study the possible side effects of a new medicine would probably
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include a control group that would receive no medicine
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An advantage of using the International System of Units is that it
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gives scientists a common way to share their results
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In a scientific experiment, a hypothesis that can't be tested is considered
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not useful
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A _____ object contains the same amount of matter as 10kg object
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10,000
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In the cell membrane, (protein, phospholipid) molecules form two layers.
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phospholipid
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When a planarian worm is cut in half, each half develops into a whole worm. this is an example of (asexual,sexual) reproduction.
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asexual
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(proteins, nucleic acids) are sometimes called the blueprints of life.
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nucleic acids
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(homeostasis, heredity) is the passing of traits from one generation to the next.
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Heredity
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(metabolism, homeostasis) refers to all of the chemical activities that an organism's cell perform.
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metabolism
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____is a complex carbohydrate manufactured by plants.
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starch
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When a duck dives under water, its inner eyelids automatically raise to cover the duck's eyes. in this case, water acts as
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the stimulus
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The molecule that provides energy for cellular processes is
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ATP
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the subunits of proteins are
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amino acids
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Cells do not use___ for energy storage
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nucleic acids
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which of the following is not true of proteins?
They are a component of spider webs they protect cells from foreign material They are the primary source of energy for cells they speed up chemical reactions |
they protect cells from foreign material
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Which of the following statements are not part of the cell theory?
The most basic component of any organism is the cell all cells originate from other cells all cells have a nucleus and a cell membrane all living things are made up of one or more cells |
all cells have a nucleus and a membrane
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A life scientist who observes the relationships between plants, animals, weather, and soil on a mountain top is studying an
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ecosystem
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Which of the following is Not found in plant cells
Lysosome ribosomes cell membrane Golgi complex |
lysosome
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Which of the following contain cellulose?
all plant cells all mushroom cells all eukaryotic cells all prokaryotic cells |
all plant cells
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Which part of a cell manufactures lipids?
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endoplasmic reticulum
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Materials that are to be released outside the cell are transported to the cell membrane in a small compartment that has pinched off the
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Golgi complex
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Which of the following is NOT a characteristic of bacteria?
they are prokaryotes their DNA is one long, circular molecule they have an endoplasmic reticulum they have a cell membrane |
they have an endoplasmic reticulum
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(active transport, diffusion) is the random movement of particles from an area of high concentration to an area of low concentration.
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Diffusion
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Plants produce their own food y the process of (photosynthesis, fermentation)
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photosynthesis
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Food molecules that are too large to pass easily through the cell membrane can enter the cell through (endocytosis, exocytosis)
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endocytosis
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Human body cells have 23 pairs of (chromatids, homologous chromosomes)
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homologous chromosomes
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The process of cell division in a bacterial cell is called (mitosis, binary fission)
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binary fission
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Food particles move through proteins in the cell membrane without using energy in a process called
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passive transport
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When wilted celery is soaked in water, it becomes crisp again due to
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osmosis
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Fermentation in an animal cells produces
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lactic acid and ATP
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Which of the following is a product of photosynthesis?
glucose carbon dioxide water heat energy |
glucose
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Which of the following is NOT used to make glucose in photosynthesis
ATP endoplasmic reticulum o2 |
o2
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a (self pollinating, true breeding) plant produces offspring with the same traits as the parent.
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true breeding
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The physical expression of an organism's genes is its (phenotype, genotype)
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phenotype
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Each parent donates a set of instructions, know as (genes, proteins) to its offspring.
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genes
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When Mendel performed genetic crosses, the traits that seemed to vanish were (dominate traits, recessive traits).
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recessive traits
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Eggs and sperm are (sex chromosomes, sex cells).
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sex cells
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These may be dominate or recessive
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alleles
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if you cross two rabbits that have the genotype Bb, how many possible genotypes can be found in the offspring
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three
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How many chromosomes are present in a normal human sex cell?
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23
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If a purple flower with the genotype Pp (P=purple p=white) self pollinates, the ratio of purple offspring to white offspring would be
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three purple: 1 white
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Probability is
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the mathematical chance that an event will occur
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Genes are composed of subunits know as (ribosomes, nucleotides)
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nucleotides
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Chargaff's rules state that the amount of (cytosine, adenine) in DNA is always equal to the amount of guanine.
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cytosine
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(DNA fingerprinting, genetic engineering) allows scientists to transfer genes from one organism to another.
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genetic engineering
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(a punnet square, a pedigree) is a tool for tracing a genetic trait through generations of a family.
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a pedigree
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Examples of chemical (mutations, mutagens) include asbestos and chemical found in cigarette smoke.
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mutagens
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The code for a given amino acid consists of (one, two, three, or four) bases
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three
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What materials make up each nucleotide in a DNA molecule?
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sugar, phosphate, base
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Most genetic disorders, such as sickle cell anemia, are due to a
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recessive gene
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The complementary strand to the DNA sequence TAGTCA would be
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ATCAGT
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Which of the following statements is false?
the environment has no influence on a person's traits several genes may affect a single trait a single gene can affect more than one trait a mutation can affect the traits of an organism |
the environment has no influence on a person's traits
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Genetic engineering is currently used to:
genetically alter plants repair damaged genes manufacture proteins all of the above |
all of the above
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Which of the following could cause sickle cell anemia?
a change in the order of bases in a person's DNA a virus a bacterium air pollution |
a change in the order of bases in a person's DNA
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A pine tree is a member of the kingdom
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plantae
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Some members of the kingdom Protista
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have flagella
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The seven levels of classification from general to specific are:
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kingdom, phyla, class, order, family, genus, species
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Linnaus is know for
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founding the science of taxonomy
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Organisms in the kingdom _____ usually move by themselves and have advanced nervous systems that allow them to respond to their environment.
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animalia
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The scientific name for the common house cat is Felis domesticus. What is its species name?
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domesticus
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Eubacteria do NOT:
live in human intestines convert milk to yogurt cause ear infections live in hot springs |
live in hot springs
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Fungi obtain nutrients by
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absorbing them from their surroundings
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Members of the kingdom (fungi, plantae) includes such organisms as the mold that grows on bread.
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fungi
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Orders of organisms are further broken down into (classes, families)
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families
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Two organisms that are in the same class will also be in the same (phylum, order)
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phylum
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Some organisms in the kingdom (eubacteria, plantae) are able to live inside the human body.
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eubacteria
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Why do scientists use scientific names for organisms?
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to help determine the animal species clearly
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Explain the two parts of a scientific name
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genus, species
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